High-efficiency condition monitoring – with the ASC AiSys® VibroTherm smart sensor system

The new ASC AiSys® VibroTherm smart sensor system is the first sensor on the market that is designed to measure not only vibrations, but also the oil temperature of bearings and gears. ASC developed the smart sensor solution together with EPHY MESS GmbH, a temperature sensor specialist. The ASC AiSys® VibroTherm requires much less installation space than single sensors and even analyzes the measurements. This makes the solution ideal for condition monitoring applications.

The combined vibration and temperature measurement allows early detection of changes in bearing or gear behavior. This prevents damage and the resulting problems and high costs.

Measuring two completely different variables with a single sensor system offers substantial advantages over the use of single sensors: A temperature sensor alone would not be sufficient for early warning of bearing or gear wear. It only reacts if the temperature significantly exceeds a threshold value. By that time, however, major damage has already occurred.

That is why the ASC AiSys® VibroTherm smart sensor system also measures accelerations, on the basis of which vibrations and oscillations can then be calculated. The accelerometer of the sensor unit features scanning rates of up to 4 kHz per axis, the temperature sensor up to 50 Hz. The sensor system operates with a 20-bit resolution for measuring acceleration, and a 15-bit resolution for measuring temperature. The ASC AiSys® VibroTherm smart sensor system features measuring ranges between ±2g and ±40g for the acceleration measurement and between –40 °C and +125 °C for the temperature measurement.

The new sensor solution reduces the space required for engineering – e.g. due to simplified wiring – and eliminates the need for external data processing. The ASC AiSys® VibroTherm smart sensor system analyzes the measurements independently and makes the information available to the customer.

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Sensortechnologie
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Sensorart

ASC 4421MF

Uniaxial, capacitive
Measurement range: ±2 to ±200 g
Noise density: 10 to 680 µg/√Hz
Frequency range (±5 %): DC to 2900 Hz

ASC OS-315LN-PG

Triaxial, capacitive
Measurement range: ±2 to ±400 g
Noise density: 7 to 400 µg/√Hz
Frequency range (±5 %): DC to 2000 Hz